- North America346 objects
- The Americas✖Remove constraint Collection place: The Americas346 objects
- United States342 objects
- Nevada327 objects
- Churchill County, Nevada326 objects
- NV-Ch-35 (Humboldt Cave), Churchill County, Nevada315 objects
- California15 objects
- CA-SCrI-100, Santa Cruz Island, Channel Islands12 objects
- Northern Channel Islands, Santa Barbara County, California12 objects
- Santa Barbara County, California12 objects
- Santa Cruz Island, Channel Islands, Southern California12 objects
- Southern California12 objects
- Grimes Point Caves, Churchill County, Nevada5 objects
- NV-Ch-16 (Hidden Cave), Churchill County, Nevada5 objects
- NV-Ch-18 (Lovelock Cave), Churchill County, Nevada5 objects
- Baja California Sur, Mexico4 objects
- Baja California peninsula, Mexico4 objects
- Comondú Municipality, Baja California Sur, Mexico4 objects
- Mexico4 objects
- Northern Mexico4 objects